ASTROSAT CZTI

Data Quality Report

Orbit 07298

Creation date: 2024-06-27T15:18:03.985695
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G06_137T01_9000001000_07298cztM0_level2.evt modeM0/AS1G06_137T01_9000001000_07298cztM0_level2_quad_clean.evt
Size (bytes)555,079,680110,928,960
Size529.4 MB 105.8 MB
Events in quadrant A4,445,995657,516
Events in quadrant B3,816,537727,111
Events in quadrant C3,810,687722,340
Events in quadrant D4,198,407700,478

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185533
B0168432
C0170582
D0184572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79334555.735535%
B79331762.218581%
C79331051.323585%
D79332002.521114%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 9223 7935 305 305 3.31% 3.84%
B 9223 7936 6 6 0.07% 0.08%
C 9223 7936 15 15 0.16% 0.19%
D 9223 7936 79 79 0.86% 1.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 234 811343 4366.89 904 883 185.6
A 8 15 137693 737.15 904 883 185.6
A 15 239 9107 44.31 904 883 185.6
B 4 81 54351 285.13 962 939 187.3
B 0 214 32184 166.79 962 939 187.3
B 12 111 19731 100.32 962 939 187.3
C 9 68 169051 770.42 929 932 218.2
C 7 247 16838 72.89 929 932 218.2
C 13 61 7137 28.43 929 932 218.2
D 12 110 342455 1482.64 928 900 230.4
D 2 14 188230 813.17 928 900 230.4
D 2 216 73471 315.02 928 900 230.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter